<template>
  <div>
    <!-- Header 区域 -->
    <van-nav-bar fixed title="文章详情" left-arrow @click-left="$router.back()" />

    <!-- 文章信息区域 -->
    <div class="article-container">
      <!-- 文章标题 -->
      <h1 class="art-title">{{artObj.title}}</h1>

      <!-- 用户信息 -->
      <van-cell center :title="artObj.aut_name" :label="formatDate(artObj.pubdate)">
        <template #icon>
          <img :src="artObj.aut_photo" alt="" class="avatar">
        </template>
        <template #default>
          <div>
            <van-button type="info" size="mini" v-if="artObj.is_followed === true" @click="followedFn(true)">已关注</van-button>
            <van-button icon="plus" type="info" size="mini" plain v-else @click="followedFn(false)">关注</van-button>
          </div>
        </template>
      </van-cell>

      <!-- 分割线 -->
      <van-divider></van-divider>

      <!-- 文章内容 -->
      <div class="art-content" v-html="artObj.content"></div>

      <!-- 分割线 -->
      <van-divider>End</van-divider>

      <!-- 点赞 -->
      <div class="like-box">
        <van-button icon="good-job" type="danger" size="small" v-if="artObj.attitude === 1" @click="loveFn(true)">已点赞</van-button>
        <van-button icon="good-job-o" type="danger" plain size="small" v-else @click="loveFn(false)">点赞</van-button>
      </div>
    </div>

    <!-- 文章评论部分 -->
    <div>
      <CommentList></CommentList>
    </div>
  </div>
</template>

<script>
import CommentList from './CommentList.vue'
import {timeAgo} from '@/utils/date.js'
import {detailAPI,userFollowedAPI,userUnFollowedAPI,likeArticleAPI,unLikeArticleAPI} from '@/api/index'
export default {
    data () {
        return {
            artObj: {} // 文章对象
        }
    },
    async created () {
        const res = await detailAPI({
            artId: this.$route.query.art_id
        })
        this.artObj = res.data.data
    },
    methods: {
        formatDate: timeAgo,
        // 关注/取关 -> 作者
       async followedFn (bool) {
            if(bool === true) {
                // 用户点在 "已关注" 按钮上
                // 页面 -> 显示关注按钮
                this.artObj.is_followed = false
                // 业务 -> 取关
                // 调接口 -> 取关接口
                const res = await userUnFollowedAPI({
                    userId: this.artObj.aut_id
                })
                console.log(res)
            } else {
                // 用户点在 "关注" 按钮上
                // 页面 -> 显示已关注按钮
                this.artObj.is_followed = true
                // 业务和接口 -> 关注接口
                const res = await userFollowedAPI({
                    userId: this.artObj.aut_id
                })
                console.log(res)
            }
        },
        // 点赞/取消点赞 -> 文章
       async loveFn (bool) {
            if (bool === true) {
                // 用户点在了"已点赞"身上
                // 显示"点赞"按钮
                this.artObj.attitude = 0 // 0不喜欢,-1无态度
                const res = await unLikeArticleAPI({
                    artId: this.artObj.art_id
                })
                console.log(res)
            } else {
                this.artObj.attitude = 1
                const res = await likeArticleAPI({
                    artId: this.artObj.art_id
                })
                console.log(res)
            }
        }
    },
    components: {
      CommentList
    }
}
</script>

<style scoped lang="less">
.article-container {
  padding: 10px;
  margin-top: 46px;
}
.art-title {
  font-size: 16px;
  font-weight: bold;
  margin: 10px 0;
}

.art-content {
  font-size: 12px;
  line-height: 24px;
  width: 100%;
  overflow-x: scroll;
  word-break: break-all;
    /deep/ img{
    	width: 100%;
  	}
    /deep/ pre {
        white-space: pre-wrap;
        word-wrap: break-word;
    }
}

.van-cell {
  padding: 5px 0;
  &::after {
    display: none;
  }
}

.avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: #f8f8f8;
  margin-right: 5px;
  border: none;
}

.like-box {
  display: flex;
  justify-content: center;
}
</style>
